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mirror changes from hdfs2

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This commit is contained in:
Chris Lu 2020-07-29 20:15:43 -07:00
parent a6d0f962e8
commit 703057bff9
3 changed files with 51 additions and 2 deletions
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2
other/java/hdfs2/src/main/java/seaweed/hdfs/SeaweedFileSystem.java
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@ -1,11 +1,11 @@
package seaweed.hdfs;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.*;
import org.apache.hadoop.fs.permission.AclEntry;
import org.apache.hadoop.fs.permission.AclStatus;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.security.AccessControlException;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.util.Progressable;
import org.slf4j.Logger;

49
other/java/hdfs3/src/main/java/seaweed/hdfs/BufferedSeaweedInputStream.java Normal file
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@ -0,0 +1,49 @@
package seaweed.hdfs;
import org.apache.hadoop.fs.PositionedReadable;
import org.apache.hadoop.fs.Seekable;
import java.io.BufferedInputStream;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
class BufferedSeaweedInputStream extends FilterInputStream implements Seekable, PositionedReadable {
SeaweedInputStream t;
protected BufferedSeaweedInputStream(InputStream in, int bufferSize) {
super(new BufferedInputStream(in, bufferSize));
t = (SeaweedInputStream)in;
}
@Override
public int read(long position, byte[] buffer, int offset, int length) throws IOException {
return this.t.read(position,buffer,offset,length);
}
@Override
public void readFully(long position, byte[] buffer, int offset, int length) throws IOException {
this.t.readFully(position,buffer,offset,length);
}
@Override
public void readFully(long position, byte[] buffer) throws IOException {
this.t.readFully(position,buffer);
}
@Override
public void seek(long pos) throws IOException {
this.t.seek(pos);
}
@Override
public long getPos() throws IOException {
return this.t.getPos();
}
@Override
public boolean seekToNewSource(long targetPos) throws IOException {
return this.t.seekToNewSource(targetPos);
}
}

2
other/java/hdfs3/src/main/java/seaweed/hdfs/SeaweedFileSystem.java
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@ -76,7 +76,7 @@ public class SeaweedFileSystem extends FileSystem {
try {
InputStream inputStream = seaweedFileSystemStore.openFileForRead(path, statistics, bufferSize);
return new FSDataInputStream(inputStream);
return new FSDataInputStream(new BufferedSeaweedInputStream(inputStream, 16 * 1024 * 1024));
} catch (Exception ex) {
LOG.warn("open path: {} bufferSize:{}", path, bufferSize, ex);
return null;